Moonlet configuration deployed for constellations and modular assembly method

A moonlet configuration deployed for constellations comprises a load module (1-0), a service module (2-0), a propulsion module (3-0), a + Y plate (41), a -Y plate (42), a solar wing (411) and a battery pack. The load module (1-0) comprises a + Z plate (11), a + X plate (12), a partition plate (13) and load equipment mounted on the + Z plate (11), the + X plate (12) and the partition plate (13); the service module 2-0 comprises a -Z plate (21) and platform equipment mounted on the -Z plate (21); the propulsion module 3-0 comprises a -X plate (31) and electric propulsion equipment mounted on the -X plate (31); the storage battery pack (312) is mounted on the outer side of the -X plate (31) or the outer side of the + X plate (12) according to the mass of the whole satellite; the solar wing (411) is mounted on the + Y plate (41) and the -Y plate (42); the + X plate (12), the -X plate (31), the + Y plate (41), the -Y plate (42), the + Z plate (11) and the -Z plate (21) form a right-angle hexahedron with a trapezoi